psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 239

• Manufacturer Part Number: psb21391
• Description: Siemens Codec With Upn Transceiver
• Manufacturer: Infineon Technologies Corporation

8.1.4
Recommended Oscillator Circuit
Figure 83
Oscillator Circuit
Crystal Specification
Parameter
Frequency
Frequency calibration tolerance
Load capacitance
Oscillator mode
Resistance
Note: The load capacitance C
XTAL1 Clock Characteristics (external oscillator input)
Parameter
Duty cycle
Data Sheet
specification. Typical values for C
Oscillator Specification
Crystal Oscillator Mode
33
33 pF
C
C
L
L
pF
15.36 MHz
7.68 MHz
L
depends on the recommendation of the crystal
Symbol
f
C
R1
L
41
42
L
XTAL1
XTAL2
are 22...33 pF.
229
Limit Values
min.
2:3
Limit Values
15.36
max. 100
max. 40
fundamental
max. 50
External
Oscillator
Signal
Driving from External Source
max.
3:2
Electrical Characteristics
N.C.
41
42
XTAL1
XTAL2
ITS09659
PSB 21391
PSB 21393
2001-03-07
Unit
ppm
pF
MHz